Glass Furnace Bottom Blocks

Home > Dense Refractory > Glass Furnace Bottom Blocks > Glass Furnace Bottom Blocks

Firebird glass furnace bottom blocks include 3 kinds which are Fireclay Bottom Block, Sillimanite Bottom Block and Lightweight Insulation Block.

Fireclay Bottom Block BN-40a, BN-45a

Sillimanite Bottom Block SIL-60TB, SIL-65TB

Insulation Block with density 0.8g/cm3 to 1.3g/cm3;

Maximum dimension 1500mm x 600mm x 400mm;

Pre-assembly and marking are available

Contact Now

Send Email

Introduction

Features

Photo Gallery

Product Knowledge

Technology Parameters

Related Products

Introduction

Firebird provides comprehensive solutions for dense and insulation bottom and sidewall blocks, tailored for glass furnace applications. These blocks are carefully designed and manufactured to ensure optimal performance, longevity, and cost-efficiency for our customers' glass furnace operations.

Firebird Fireclay & Sillimanite Bottom Blocks are Shaped by using advanced vibrating casting technology on a large vibration platform, these blocks are sintered in high temperature shuttle kilns, ensuring maximum durability and performance. Precision processing with cutting-edge milling, drilling, and cutting equipment ensures their six surfaces meet the highest quality standards.

Firebird lightweight Insulation blocks give furnace designers more choices in specific areas to reduce mortar joints and significant fuel & labor savings.The large-scale machine shop at the factory is capable of supplying accurately machined slabs & shapes with tolerance +/-1mm.

Get A Quote

Application

Ideal materials for use in multiple areas within a glass furnace:

Glass Furnace Melter:

Serves as paving backup blocks.
Furnace Side Wall:

Provides critical side wall backup.
Forehearth & Canal:

Ensures efficient functioning as canal and forehearth backup.

Photo Gallery

Features of Fireclay & Sillimanite Bottom Block

Uniform Structure: Consistency of the material throughout the block ensures optimal performance.

High Density & Low Porosity: This characteristic enhances the block’s resistance to high temperatures and the erosive nature.

High Refractoriness Under Load (RUL): Maintains its physical integrity under high temperature and pressure, ensuring longevity.

Precise Tolerance: Accurate manufacturing allows a perfect fit in various furnace applications.

Lightweight Insulation Blocks for Glass Furnace

The lightweight insulation blocks are crafted from selected alumina-silicate raw materials, extrusion to shaping, sintered in high-temperature tunnel kiln, saw & grind to finished shapes.
Specialized Grades:

FLG135-1.20 Grade: A medium-strength insulating block with a 10MPa Cold Crushing Strength. These blocks, shaped by using specialized molds, are finely ground to achieve dimensional accuracy within a tolerance of +/-1mm.

FLG130-1.30 Grade: Crafted from selected high-quality raw materials, these blocks stand out with their impressive
20MPa Cold Crushing Strength.

Technical Parameters

Glass Furnace Fireclay Bottom Block
Grade		BN-40a		BN-45a
Items	Unit	Typical	Assured	Typical	Assured
Bulk Density	g/cm3	2.35	≥2.3	2.37	≥2.3
Apparent Porosity	%	14	≤18	13.5	≤18
Cold Crushing Strength	MPa	90	≥40	90	≥45
0.2MPa Refractoriness	°C	1450	≥1400	1460	≥1450
Under Load, T0.6	°C	1450	≥1400	1460	≥1450
*Reheating Linear Change, 1400°C2h**	%	-0.2	-0.4～+0.1	-0.1	-0.4～+0.1
Al2O3	%	47.4	≥40	48	≥40
Fe2O3	%	1.38	≤ 1.5	1.35	≤ 1.5

Glass Furnace Sillimanite Bottom Block
Grade		SIL-60TB		SIL-65TB
Items	Unit	Typical	Assured	Typical	Assured
Bulk Density	g/cm3	2.4		2.45
Apparent Porosity	%	17	≤21	17	≤21
Cold Crushing Strength	MPa	60	≥55	68	≥60
0.2MPa Refractoriness Under Load, T0.6	°C	1550	≥1500	1580	≥1550
Reheating Linear *Change, 1400°C2h**	%	0.8		-0.65
Al2O3	%	62	≥60	65	≥64
SiO2		35		33
NaO		0.9		0.9
Fe2O3		1.0		0.5
Thermal Conductivity
400°C	W/m.K	1.4		1.4
600°C		1.5		1.5
800°C		1.6		1.6

Glass Furnace Insulation Firebrick
Items		FLG140-1.0	FLG140-0.9	FLG135-1.2	FLG135-1.0	FLG130-1.30	FLG130-0.8
Al2O3	%	48	48	48	48	45	45
SiO2	%	44	43	43	42	46	51
Fe2O3	%	2.5	1.8	2	1.8	2.5	1.4
Bulk Density	g/cm3	1	0.9	1.2	1	1.3	0.8
Cold Crushing Strength	MPa	5	4	10	4.7	20	2.2
Modulus of Rupture	MPa	3	2.5	4	3	9	1.3
Reheating Linear Change	%	-1.5	-1.5	-1.5	-1.5	-1.5	-1.5
Reheating Linear Change	%	1400°C x 8h	1400°C x 8h	1350°C x 8h	1350°C x 8h	1300°C x 8h	1300°C x 8h
Thermal Conductivity
400°C	W/m·K	0.41	0.4	0.51	0.41	0.5	0.25
600°C		0.45	0.44	0.54	0.45	0.52	0.29
800°C		0.5	0.48	0.57	0.49	0.55	0.34
1000°C		0.55	0.53	0.61	0.54	0.6	0.38

Related Products

By Science And Engineering, Our Lightweight Insulation Delivers Optimal Thermal Performance

Fireclay Refractory Brick

Transforming Ordinary Fireclay Bricks into Exceptional Products is Our Mission.

High Purity Corundum Brick – OVER 99% Aluminum Content

Corundum bricks are high-performance refractory materials known for their exceptional hardness, high thermal stability, and resistance to chemical attack.

View More Download

Chrome Corundum Brick

Chrome corundum bricks boast superior corrosion resistance due to their unique Al2O3/Cr203-solid crystal makeup.

View More Download

Silicon Carbide Bricks (SiC Bricks)

Silicon carbide bricks are primarily made from silicon carbide (SiC) as the main raw material. Since SiC forms covalent bonds, it does not exhibit typical sintering behavior. Instead, sintering is achieved through the formation of new phases via chemical reactions, known as reaction sintering.

Submit A Quick Quote

Frequently asked questions (FAQs)

Can we visit your factory?

Absolutely! We welcome plant audits and visits to our facilities. Please note that Firebird insulation refractory and high-performance refractories are manufactured in separate plants. Let us know your requirements, and we can arrange a convenient schedule for your visit to ensure a smooth and informative experience.

How does Firebird ensure the quality of its refractory products?

At Firebird, quality assurance is integral to our operation, embodying our commitment to transparency and excellence. Here's how we ensure top-notch quality: Transparency in Production: After you place an order, we provide you with a detailed production plan, outlining each stage of the manufacturing process. Weekly Progress Updates: We keep you informed with weekly updates, so you always know the status of your order. Detailed Testing: Every batch of products undergoes thorough testing, and we provide a detailed test report that includes data on chemical composition, physical properties, and compliance with international standards. Comprehensive Inspections: We meticulously check the appearance, size, and weight of each product to ensure they meet our stringent quality criteria. Shipping Documentation: To maintain transparency and trust, we share photos of your order at the shipping stage, allowing you to see the final packaging and labeling.

Can you provide samples of your products?

Yes, we can provide samples of our products. We understand the importance of testing materials in your specific application and are happy to assist with samples upon request. Please contact our sales team to arrange for sample delivery.

Do you accept custom dimensions for your refractory products?

Absolutely. Firebird specializes in customizing refractory materials to meet specific customer requirements. Whether you need custom shapes, sizes, or specifications, our team can accommodate your needs. Please provide your detailed requirements, and we will work closely with you to deliver the perfect solution.

What is the typical delivery time for orders?

Our standard delivery time is generally between 10 to 15 days for most products. However, for specialized or customized bricks, the delivery time may extend to approximately one month. We strive to meet our customers' timelines and will provide an estimated delivery date upon order confirmation.

What payment methods do you accept?

We accept payments via T/T (Telegraphic Transfer) in major currencies such as Euro (EUR) and US Dollar (USD). Our payment terms are flexible, and we can accommodate different payment schedules based on the agreement.

Who are your main customers?

Firebird takes pride in its extensive global reach, serving a diverse clientele across more than 40 countries. Our customers range from Southeast Asia's dynamic industrial centers to the heartlands of the USA. We also have significant market presence in Europe, South America, and Africa. This broad geographical distribution allows us to cater to various industries, including glass manufacturing, steel production, and other high-temperature industrial applications, ensuring our products meet the specific needs of each region.